Depending on where the stroke takes place will determine what (if any) deficits the patient will have. If your relative is having diffculty moving their right arm this would indicate that there could be damage to the cerebellum, motor cortex, or frontal lobe. All of these areas affect movement. If your relative is having problems speaking she most likely had trauma to the Wernicke's Area of her brain.

The advice I would give to a family member when they called to discuss the condition would be to make sure your relative was placed in a rehabilitation center where he/she could work on strengthening their arm strength. I would also suggest pairing the relative with a speech therapist who specializes in brain trauma who could work with him/her on improving their speech.